Patents by Inventor Akihiko Yabuki

Akihiko Yabuki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11776134
    Abstract: An element recognition apparatus (100) segments three-dimensional skeleton information including a subject performing a series of performances, acquired in chronological order, into a plurality of units in accordance with a predetermined rule. The element recognition apparatus (100) determines whether a postural motion corresponding to a first unit among the units is a first motion having a feature indicating that the subject is stationary or a second motion different from the first motion. The element recognition apparatus (100) determines, based on a determination result corresponding to the first unit and a recognition result of recognition on the type of moving motion in a second unit that is continuous with the first unit, an element corresponding to the combination including at least the first unit and the second unit.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: October 3, 2023
    Assignee: Fujitsu Limited
    Inventor: Akihiko Yabuki
  • Patent number: 11645872
    Abstract: A scoring method executed by a processor, includes: acquiring sensor data obtained by measuring a competitor in a scoring competition; extracting joint information of the competitor, based on an analysis result of the sensor data; acquiring an evaluation item and an evaluation index that correspond to the joint information of the competitor, based on a rule in which a posture specified by a series of joint motions and joint angles, the evaluation item, and the evaluation index for performance evaluation are associated with each other; and evaluating a success or failure of a skill and a degree of perfection of the skill in a performance of the competitor, based on the analysis result, the evaluation item, and the evaluation index.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: May 9, 2023
    Assignee: Fujitsu Limited
    Inventors: Hirohisa Naito, Tsuyoshi Matsumoto, Satoshi Shimizu, Akihiko Yabuki, Hideaki Hirano
  • Publication number: 20220301352
    Abstract: A recognition device acquires skeleton information of a subject in a time series manner. The recognition device estimates a region where a specific joint is positioned using position information of a first joint group of a plurality of joints included in each piece of the time-series skeleton information. The recognition device estimates a region where a specific joint is positioned using position information of a second joint group that includes the specific joint and is a part of the first joint group of the plurality of joints included in each piece of the time-series skeleton information. The recognition device determines the region where the specific joint is positioned on the basis of each estimation result. The recognition device recognizes a motion of the subject using the time-series skeleton information and the determined region where the specific joint is positioned and outputs a recognition result.
    Type: Application
    Filed: June 10, 2022
    Publication date: September 22, 2022
    Applicant: FUJITSU LIMITED
    Inventors: Takuya Sato, Masataka Fujisaki, Akihiko Yabuki, Takashi HONDA
  • Publication number: 20220207921
    Abstract: A motion recognition method for a computer to execute a process includes acquiring skeleton information in time series based on positional information of each of a plurality of joints that includes a certain joint of a subject who makes a motion; estimating a region where the certain joint is positioned among a plurality of regions obtained by dividing a region of an object used for the motion based on the positional information; recognizing the motion of the subject by using the skeleton information and the estimated region; and outputting the recognized motion of the subject.
    Type: Application
    Filed: March 15, 2022
    Publication date: June 30, 2022
    Applicant: FUJITSU LIMITED
    Inventors: Masataka Fujisaki, Takuya Sato, Akihiko Yabuki, Shoichi Masui, Takashi HONDA
  • Patent number: 11176359
    Abstract: A motion recognition device includes a memory, and a processor coupled to the memory and configured to classify a plurality of frames including positional information of a feature point that corresponds to a predetermined part or a joint part of a body of a subject into a plurality of groups in time series by segmenting the plurality of frames in time series based on a position of the predetermined part of the body of the subject, identify a type of a basic motion that corresponds to the group, based on movement of the feature point included in a consecutive frame, for each group, and evaluate a skill and a difficulty level of a motion performed by the subject based on an order of each type of the basic motion that corresponds to a group which is consecutive in time series.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: November 16, 2021
    Assignee: FUJITSU LIMITED
    Inventors: Akihiko Yabuki, Yoshihiko Nakamura, Wataru Takano
  • Publication number: 20200302617
    Abstract: An element recognition apparatus (100) segments three-dimensional skeleton information including a subject performing a series of performances, acquired in chronological order, into a plurality of units in accordance with a predetermined rule. The element recognition apparatus (100) determines whether a postural motion corresponding to a first unit among the units is a first motion having a feature indicating that the subject is stationary or a second motion different from the first motion. The element recognition apparatus (100) determines, based on a determination result corresponding to the first unit and a recognition result of recognition on the type of moving motion in a second unit that is continuous with the first unit, an element corresponding to the combination including at least the first unit and the second unit.
    Type: Application
    Filed: June 9, 2020
    Publication date: September 24, 2020
    Applicant: FUJITSU LIMITED
    Inventor: Akihiko Yabuki
  • Publication number: 20200188736
    Abstract: A scoring method executed by a processor, includes: acquiring sensor data obtained by measuring a competitor in a scoring competition; extracting joint information of the competitor, based on an analysis result of the sensor data; acquiring an evaluation item and an evaluation index that correspond to the joint information of the competitor, based on a rule in which a posture specified by a series of joint motions and joint angles, the evaluation item, and the evaluation index for performance evaluation are associated with each other; and evaluating a success or failure of a skill and a degree of perfection of the skill in a performance of the competitor, based on the analysis result, the evaluation item, and the evaluation index.
    Type: Application
    Filed: February 27, 2020
    Publication date: June 18, 2020
    Applicant: FUJITSU LIMITED
    Inventors: HIROHISA NAITO, Tsuyoshi MATSUMOTO, Satoshi SHIMIZU, Akihiko Yabuki, HIDEAKI HIRANO
  • Patent number: 10600444
    Abstract: A video image processing device receives information indicating whether an event has occurred in a competition area in which different regions are captured by a plurality of cameras, determines a camera that captured a video image of one of the different regions at which the event has occurred, extracts a partial video image obtained at the time at which the event has occurred from video image information on video images captured by the determined camera and stores the extracted partial video image to the memory.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: March 24, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Akihiko Yabuki, Kazuo Sasaki
  • Patent number: 10488928
    Abstract: A tactile sensation providing system includes an electronic device and a tactile sensation providing apparatus, which includes a wearable part worn on fingers, vibrating elements disposed at portions corresponding to the fingers, sensors that detect touches of the fingers onto a manipulation input surface, and a second controlling part able to communicate with a first controlling part. Upon receiving from the second controlling part a signal representing that a touch of one finger is detected by one sensor, the first controlling part obtains, based on data representing the finger and on coordinates detected by a detector, a type of the finger touching the surface and the coordinates where the finger touches the surface, and generates a driving signal representing a tactile sensation corresponding to the data representing the finger, the coordinates, and a displayed image. The second controlling part drives one of the vibrating elements using the driving signal.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: November 26, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Takashi Katsuki, Fumihiko Nakazawa, Osamu Toyoda, Akihiko Yabuki
  • Publication number: 20190220657
    Abstract: A motion recognition device includes a memory, and a processor coupled to the memory and configured to classify a plurality of frames including positional information of a feature point that corresponds to a predetermined part or a joint part of a body of a subject into a plurality of groups in time series by segmenting the plurality of frames in time series based on a position of the predetermined part of the body of the subject, identify a type of a basic motion that corresponds to the group, based on movement of the feature point included in a consecutive frame, for each group, and evaluate a skill and a difficulty level of a motion performed by the subject based on an order of each type of the basic motion that corresponds to a group which is consecutive in time series.
    Type: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Inventors: Akihiko Yabuki, Yoshihiko Nakamura, Wataru Takano
  • Patent number: 10115020
    Abstract: An image processing device acquires multiple sets of continuous image data, captured by a capturing device, determines whether an object having a predetermined characteristic is present in a partial region of image data included in the sets of image data, using the processor repeatedly detects the object from image data that is captured prior to the image data where the object is present, when the object is determined to be present in the partial region, using the processor, calculates a movement trajectory of the object in accordance with positions of the object, detected from multiple sets of image data, and times of the sets of image data, using the processor and identifies a start position and a start time of the movement trajectory.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: October 30, 2018
    Assignee: FUJITSU LLIMITED
    Inventors: Kazuo Sasaki, Akihiko Yabuki
  • Publication number: 20170262060
    Abstract: A tactile sensation providing system includes an electronic device and a tactile sensation providing apparatus, which includes a wearable part worn on fingers, vibrating elements disposed at portions corresponding to the fingers, sensors that detect touches of the fingers onto a manipulation input surface, and a second controlling part able to communicate with a first controlling part. Upon receiving from the second controlling part a signal representing that a touch of one finger is detected by one sensor, the first controlling part obtains, based on data representing the finger and on coordinates detected by a detector, a type of the finger touching the surface and the coordinates where the finger touches the surface, and generates a driving signal representing a tactile sensation corresponding to the data representing the finger, the coordinates, and a displayed image. The second controlling part drives one of the vibrating elements using the driving signal.
    Type: Application
    Filed: May 31, 2017
    Publication date: September 14, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Takashi KATSUKI, Fumihiko NAKAZAWA, Osamu TOYODA, Akihiko YABUKI
  • Publication number: 20170263285
    Abstract: A video image processing device receives information indicating whether an event has occurred in a competition area in which different regions are captured by a plurality of cameras, determines a camera that captured a video image of one of the different regions at which the event has occurred, extracts a partial video image obtained at the time at which the event has occurred from video image information on video images captured by the determined camera and stores the extracted partial video image to the memory.
    Type: Application
    Filed: February 6, 2017
    Publication date: September 14, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Akihiko YABUKI, Kazuo Sasaki
  • Patent number: 9684377
    Abstract: A drive apparatus includes a memory to store waveform data representing a sinusoidal drive signal satisfying a frequency f1=(m/n)×q(t) (m and n: natural numbers, m?n), to vibrate a vibration-generating device m times, where q(t) is a time characteristic of a resonance frequency of the vibration-generating device, or ((m/2)×r) times (r: natural number?0, m and n: positive odd, m?n), the vibration-generating device having the resonance frequency varying depending on an acceleration amplitude in a range between first and second resonance frequencies including the rated value f0; and a drive-processor to output the drive signal to the vibration-generating device. The q(t) is obtained when driving the vibration-generating device by a sinusoidal drive signal satisfying f1=(m/n)×f2, to vibrate the vibration-generating device m times if m?n, or ((m/2)×r) times.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: June 20, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Kiyoshi Taninaka, Yasuhiro Endo, Akihiko Yabuki
  • Publication number: 20170132470
    Abstract: An image processing device acquires multiple sets of continuous image data, captured by a capturing device, determines whether an object having a predetermined characteristic is present in a partial region of image data included in the sets of image data, using the processor repeatedly detects the object from image data that is captured prior to the image data where the object is present, when the object is determined to be present in the partial region, using the processor, calculates a movement trajectory of the object in accordance with positions of the object, detected from multiple sets of image data, and times of the sets of image data, using the processor and identifies a start position and a start time of the movement trajectory.
    Type: Application
    Filed: October 10, 2016
    Publication date: May 11, 2017
    Applicant: FUJITSU LIMITED
    Inventors: KAZUO SASAKI, Akihiko Yabuki
  • Patent number: 9606628
    Abstract: A drive control apparatus includes a storage configured to store waveform data representing a drive signal constituted of a sine wave satisfying a frequency f1=(m/n)×f0 (m and n are mutually different positive odd numbers), the drive signal applying vibration (m/2)×Q times (Q is a natural number other than 0) to an actuator, the f0 representing a resonant frequency of the actuator, and a drive controller configured to read the waveform data stored in the storage, and output the drive signal corresponding to the read waveform data to the actuator.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: March 28, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Kiyoshi Taninaka, Yuichi Kamata, Yasuhiro Endo, Akihiko Yabuki
  • Patent number: 9552066
    Abstract: A drive control apparatus includes a storage storing first or second waveform data representing a drive signal, and a drive controller reading the first or the second waveform data, and output the drive signal to the actuator. The first waveform data applying vibration m×Q times (Q is a natural number other than 0) and obtained by multiplying a sine wave (f1=(m/n)×f0 (m and n are mutually different natural numbers other than 0)) by a damping ratio of a vibration system to an actuator, and the second waveform data applying a vibration (m/2)×Q times (Q is a natural number other than 0) and obtained by multiplying a sine wave (a frequency f1=(m/n)×f0 (m and n are mutually different positive odd numbers)) by the damping ratio to the actuator, where f0 represents a resonant frequency of the actuator.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: January 24, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Kiyoshi Taninaka, Yuichi Kamata, Akinori Miyamoto, Yasuhiro Endo, Akihiko Yabuki
  • Publication number: 20160239089
    Abstract: A drive apparatus includes a memory to store waveform data representing a sinusoidal drive signal satisfying a frequency f1=(m/n)×q(t) (m and n: natural numbers, m?n), to vibrate a vibration-generating device m times, where q(t) is a time characteristic of a resonance frequency of the vibration-generating device, or ((m/2)×r) times (r: natural number?0, m and n: positive odd, m?n), the vibration-generating device having the resonance frequency varying depending on an acceleration amplitude in a range between first and second resonance frequencies including the rated value f0; and a drive-processor to output the drive signal to the vibration-generating device. The q(t) is obtained when driving the vibration-generating device by a sinusoidal drive signal satisfying f1=(m/n)×f2, to vibrate the vibration-generating device m times if m?n, or ((m/2)×r) times.
    Type: Application
    Filed: April 27, 2016
    Publication date: August 18, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Kiyoshi Taninaka, Yasuhiro Endo, Akihiko Yabuki
  • Publication number: 20160103493
    Abstract: A drive control apparatus includes a storage storing first or second waveform data representing a drive signal, and a drive controller reading the first or the second waveform data, and output the drive signal to the actuator. The first waveform data applying vibration m×Q times (Q is a natural number other than 0) and obtained by multiplying a sine wave (f1=(m/n)×f0 (m and n are mutually different natural numbers other than 0)) by a damping ratio of a vibration system to an actuator, and the second waveform data applying a vibration (m/2)×Q times (Q is a natural number other than 0) and obtained by multiplying a sine wave (a frequency f1=(m/n)×f0 (m and n are mutually different positive odd numbers)) by the damping ratio to the actuator, where f0 represents a resonant frequency of the actuator.
    Type: Application
    Filed: December 21, 2015
    Publication date: April 14, 2016
    Applicant: FUJITSU LIMITED
    Inventors: KIYOSHI TANINAKA, Yuichi Kamata, Akinori Miyamoto, Yasuhiro Endo, Akihiko Yabuki
  • Publication number: 20160103491
    Abstract: A drive control apparatus includes a storage configured to store waveform data representing a drive signal constituted of a sine wave satisfying a frequency f1=(m/n)×f0 (m and n are mutually different positive odd numbers), the drive signal applying vibration (m/2)×Q times (Q is a natural number other than 0) to an actuator, the f0 representing a resonant frequency of the actuator, and a drive controller configured to read the waveform data stored in the storage, and output the drive signal corresponding to the read waveform data to the actuator.
    Type: Application
    Filed: December 21, 2015
    Publication date: April 14, 2016
    Applicant: FUJITSU LIMITED
    Inventors: KIYOSHI TANINAKA, Yuichi Kamata, Yasuhiro Endo, Akihiko Yabuki